One. Are smart IC card locks secure?
Safe.

An IC card lock, also known as a card swipe lock or integrated access control lock, is a type of lock manufactured with a tongue lock mechanism that provides protection against forced entry and impact. It uses a password consisting of 42 digits, which fundamentally differs from traditional locks with the ability to be unlocked with multiple keys. Even if an IC card is lost, it can be deactivated promptly to prevent unauthorized access. Specifically for IC card-based smart door lock systems, even if the card is found, the access key can be managed with different levels of authorization, allowing the lock core's microcomputer to recognize and identify the card.
Two. Working principle of electromagnetic locks
Principle of RFID card locking: The RFID reader transmits a set of fixed-frequency electromagnetic waves to the card. At this time, an LC resonant circuit should exist within the card, with a frequency that matches the frequency of the transmitted waves. Under the influence of these electromagnetic waves, the LC resonant circuit generates resonance, and charge also accumulates within the capacitor. On the other side of this charge is a unidirectional electronic pump that can transfer the charge from the capacitor to another charge for storage. When the charge reaches 2V, the capacitor can be used as a power source to provide the voltage required by other circuits.
Three. Can IC cards be paired with any card?
Regarding the question of whether IC card locks can be paired with any card, many people may have this concern. In reality, IC card locks can be paired with cards, but not just any card. First, you need to have one blank card and one authorization card. It is necessary to have a professional person compare the blank card and the authorization card according to the production company and model of the card lock to ensure compatibility between the controller and the software. This allows you to add a new card to the blank card. All of this requires the authorization card to facilitate the operation.